One Direction have always been partial to the easy access attire of a onesie and now they've decided to put the strength of all our ovaries to the ultimate test, making a video of them romping about pressing paint covered handprints all over each other.

Well, that's what Niall Horan, Liam Payne and Harry Styles seem to be doing, but Zayn Malik and Louis Tomlinson seemed far too busy applying lipstick to each other to pay much attention.

One Direction frolic in onesies and smack each other's bums with paint covered hands for OnePiece - VIDEO

Having been fans of a OnePiece onesie since their time on the X Factor, the lads are once again flowing free and have been showing off their love of an easy access garment by arsing about smacking each other's bums.

We're not sure who that girl is but we are WELL JEAL of all that finger painting she seems to be doing all over Harry.

One Direction frolic in onesies and smack each other's bums with paint covered hands for OnePiece - VIDEO

We have to hand it to the people over at OnePiece - if the idea of 1D rubbing their crotches all over a product doesn't make you want to buy it, nothing will.

Check it out:

There's not much we wouldn't do to be that girl. She, Harry and his fairly girly run seem to be having a rather lovely time, don't they?

Seeing as we've seen them put lipstick on, let's watch them talk about boobs for a bit;

 



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